Duo-glazed sash.



T. J. CALLAHAN.

DUO-GLAZD SASH. APPUCATION FILED oc?. 1s. :914.

Patented Jan, 2, l917.

wom/woo @NME THOMAS J'. CALLAHAN, OF DAYTON, OHIO.

DUO-GLAZEID SASI-I.

Specification of Letters Patent.

Patented Jan. 2, 1947-.

Appleationiled October 16, 1914. Serial No. 867,017.

T0 all whom t may concern:

Beit known that I, THOMAS J. CALLAHAN, a citizen ofthe United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented new and useful Improvements in Duo-Glazed Sash, of which the following is aspecilication.

This invention relates to new and useful improvements in duo-glazed sash.V

rlhe principal object of my invention is to provide for hot beds and cold frames, a duoglazed `sash in whichv the glass may be readily and quickly inserted by the user himself. rlhis operation, known as glazing, is brought within the power of the most inexperienced gardener byv my removable means for locking or retaining the panes within the sash. YThese means, to be hereinafter described, not only make it possible for the user rhimself to Areadily and quicklyninsert theglass within the sash, but after this operation is completed they will flexibly and firmly hold the, panes in their proper positions until removed for cleaning or other purposes. The removal of one or more panes from the top or bottom layer of glass is'as simple an operation for the gardener as their initial insertion, and at no time need there be any cause for complaint that the glass cannot be kept clean or broken panes easily replaced.

Other important and incidental objects i A' ywill be brought out in the following specification and particularly'pointed out in the subjoined claim.

In the accompanying drawings, Figure 1 Y, is a perspective view, partlycin section, of

my'improved duo-glazed sash. Fig. 2 is a longitudinal sectional view thereof, looking toward one of the loclnng strips. And Fig. 3 is a side elevational view, showing my improved duo-glazed sash mounted upon a flower frame.

Throughout the specification and draw-l ings, similar reference characters denote corresponding parts.

In a detailed description of my invention, the numerals 1 and 2 designate the side rails, and 3 and 4 the end rails of my improved sash, said side rails being joined to the end rails in the usual manner. Extending between, and connected to the end rails 3 and 4 are muntins 5 and 6. While I'have shown twoof these mnntins, any number may be provided depending upon the width of the panes desired, or they may be eliminated altogether and the glass inserted between the side rails themselves. Extending from the upper longitudinal faces of the muntins 5 and G are tongues 7, preferably rectangular in cross section and provided for a purpose to be hereinafter explained.

'Provided in the inner side face of the side rail 1 is an upper longitudinal groove 8 and a lower longitudinal groove 9. The upper groove 8 is .formed to receive glass panes 10 disposed in lapped relation to shed water when the sash is inclined, while the lower groove 9 is Yadapted to receive panes 1l which are butted together as shown in Fig. 2. @ne side edge of each of the panes 11 is firmly but iexibly held within the groove 9, while the other side edge of each of said panes is likewise supported within a longitudinal groove or opening 12 formed between an extended or flanged portion 13 of the muntin 6 and a strip 14 suitably secured to the bottom face of said muntin. The strip 14 is severed on an angle at the point lrto provide a portion 16 which may be easily attached or detached by screws 17, to permit the ready insertion or removal of one or more of the panes 11.

The side edge of each of the panes 10, opposite that which is received by the groove 8is adapted to rest upon the longitudinal flanged or extended portion 13 of the muntin 6. As before stated, the panes `10 are lapped, that is, each glass pane projects a short distance over the one below it to make a waterproof connection between them. The object of providing. these two layers of glass, one disposed ay short distance above the other, is to provide a sufficient space loeg tween the top and bottom layer for the re# tention of air, which, when exposed to the suns rays, will absorbk enough heat to prevent the plants below from freezing when the outside temperature is extremely low.

That the glass in the top layer may be as readily inserted and removed as that in the lower, the following means are provided. Adapted to besecured to the end rails .3 and 4 by means of screws 18, are locking members or strips 19 and 20. The strip 19 has formed in its under surface a longitudinal groove 21 which receives the tongue 7 of the muntin 5, while the strip 2O is provided with a similar groove 22 which receives theV tongue 7 of' the muntin 6. By means of screws 23 the strips 19 and 20 may be readily attached to and detached from their respective muntins 5 and 6 tohold in place or permit the removal of the panes 10.

As the panes 10 are lapped for the purpose of shedding water, the strips 19 andQOv Y`-edgirs ofthe lapped panes to firmly lock them to the sash. These locking strips are effective substitutes for the springs, putty and other minor parts which have been used to"'retain they glass within the sash, and which, because of their' tendency to work loose and for other'reasons, have proved un-V satisfactory inimost cases. `On the other hand,"'my improvedv locking strips are 'always: effective and readily adjusted, to the end that the panes may be easily inserted and removed, and, firmly locked in position even though butl one corner "edge of each pane isv engaged by af shoulder 24.

:"llhef operation of glazing my improved duo-,glazed sash may be accomplished by the veriest amateur, and is as follows. The sash is laidcbottoin side up and the portion 1,6 of the's'trfip Y141 removed. The panes 11 are then fedfi'n to the grooves 9 and 12 through the openingcreated, the upper edge of the pane first inserted being moved into a groove 25 formed inthe end rail 3, while the lower edge 'of the pane lastinserted enters a groove Q'Gfformed inthe end rail 4c, the other Aupper and lower edges of, said panes butting against each other. The portion 16 of the strip 14Cl isthen securedin position by the screws 17,- andfthe sash turnedright side up.

1n describing the operationoffglazing the sashl am confining myself to the method of insertingthe panesbetween the side rail 1 a'ndlmuntin 6,*whic'h is similar to that ofinsertin'gfthey glass betweenthe end rail'Qsand in untin 5, and between fthe muntins 5 and 6 or.' any additional mun'tins that may bev provided.` ItA may be further stated that, for convenience, Athe lower layer of glass maybe completely inserted before theupper face of thesashis glazed. 7

` Zhen the sash has beenturned rightzside up, the locking strip 2Q is removed by, withdrawing the4 screws 18` and 23.` A panelO vis then Lseit.` so that its upper edge will enter a grioo'x'fe 27y formed in the end rail 3, whilela side edge of said pane projects into the groove 8 in the side rail 1. A second pane 10'is then inserted iny such a manner that its upper edge will extend-i beneaththe lower edge of the first mentioned pane, and so ou until the entirev space between the muntin 6V and side rail1'is filled with panes disposed in; lapped relation to each other. When the panes 10 are so lapped,with one side edge ofeach resting within the grooveb S. andg the other on the flanged portion 13 of the muntin 6, the 4strip "20" may be applied to said muntin by the screwsQ. Eachv end ofl the strip 20, as well as ofthe 'stripl 19, is'falso forined'in suchlx a mannerfas tob'e attachable tothe end rails??? andl'by'theslewsfl; Y

When the strip 2Q isl seeuredjtov the muntin 6 and ijails and 4, theshoulderxs/ i 0n Sad'stri will engage the lolve lefS-lla'nll Corner @gs 0f the PlllQS lQvtQllrmly lOCl them in their lapped positionsl The strips 19 and QOhOt Qnlv leek. the lapped penes firmly in', pQSition, be? insure a sufefntly flexible fastening tpv permit the glass tocontract or expandy undervaryingdegreesof Y temperature withoiiit' danger Vof.l breaking.

' 1t will now bese'en thatY when thes'ash: is Y placed upon aV frame '28',as showninFig. 3, the panes of glass in: the upperand'lower layers will be firmly retainedinpesiitien at an times; 1 i' The method '0f inserting 'the glasshaS already been explained, To .i remeve the panes for Cleaning, om 'ter'eplaee these vll-lekkere become brolen,`merelj{ requires 'the 'removal 0f the lOCkinfe'stripefromthelippe? lever; off

theV detachablefportQIl, of the reteining Strips from theilowr layeevhereupa the panespinay be readily. withdrawn;

The small number ofp'a'rts used inniyv impvroved sash, the ease with which it may be glazed. and the. llm beiflexible way' ill which the glass is supported, are/some of the marked advantages v zhich,standl out.Y in level-bfi@ use bythmarket earfflelier, H01'- ist, amateur or Qther'personfoifpersonsenf gaged in gardening for pro-fit. j Y Y 1 do not wish' to ybe limited tothedetails of construction and air'rangementv herein shown and described, andk vfnodificaxim s orl alterations may be,madetheiein'tojsuit different clo-nditionsof use.

A glazed sash for garden frames, cprriprisside members, secured thereto, theY inner face of eachofsaidside membershvavingfawide longitudinal groove to receivev lapped 'pane's of glass, lone .ory more intermediatelongitude nal members, ledgesA formed on the 1nterme diete member 01? "members, te 'Suiiifilt Said,

, l a 120 inga pairof parallelend members, apair of Y tongue, and shoulders on the loWer longitu- In testimony whereof I have hereunto set dinal edge of said strip opposite the ledges, my hand this 14th day of October, 1914. to engage and hold in a lapped position, the THOMAS J. CALLAHAN. panes of glass supported by said longtudiv Witnesses:

5 nal grooves and ledges, substantially as de- Y HOWARD S. SMITH,

scribed. p ELWooD H. HERBiG.

Copies of this patent may be obtained` for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

